docs: fix System.CommandLine tab-completion example to use RootCommand #50124
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### Summary Fixed the tab-completion example in `how-to-enable-tab-completion.md` by updating the sample code to use `RootCommand` instead of `Command`. ### Changes - Wrapped the command in a `RootCommand`. - Updated the invocation to use `rootCommand.Parse(args).InvokeAsync()`. - Verified that tab-completion and help now work correctly. ### Why Resolves issue dotnet#48478 — the original code used `.Parse(args).Invoke()` on a `Command`, which prevented tab-completion and help from working as intended.
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Summary
Fixed the tab-completion example in
how-to-enable-tab-completion.mdby updating the sample code to useRootCommandinstead ofCommand.Changes
RootCommand.rootCommand.Parse(args).InvokeAsync().Why
Resolves issue #48478 — the original code used
.Parse(args).Invoke()on aCommand, which prevented tab-completion and help from working as intended.Summary
Describe your changes here.
Fixes #Issue_Number (if available)